Ficheiro:NIST-4 Kibble balance.jpg
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Tamaño desta vista previa: 431 × 599 píxeles. Outras resolucións: 172 × 240 píxeles | 345 × 480 píxeles | 552 × 768 píxeles | 736 × 1.024 píxeles | 1.472 × 2.048 píxeles | 4.832 × 6.720 píxeles.
Ficheiro orixinal (4.832 × 6.720 píxeles; tamaño do ficheiro: 15,68 MB; tipo MIME: image/jpeg)
Resumo
| Descrición |
English: The NIST-4 Kibble balance, which began full operation in early 2015 at the National Institute of Standards and Technology (NIST) in Gaithersburg, Maryland, United States, measured Planck's constant to within 13 parts per billion in 2017, which was accurate enough to assist with the redefinition of the kilogram planned for 2019. |
| Data | |
| Orixe | https://www.nist.gov/image/nist4wattbalancejpg |
| Autoría | Jennifer Lauren Lee, for the U.S. National Institute of Standards and Technology (NIST) |
| Localización da cámara |  | Esta e outras imaxes na súa localización en: OpenStreetMap |  |
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Licenza
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This image is in the public domain in the United States because it is a work of the United States Federal Government, specifically an employee of the National Institute of Standards and Technology, under the terms of Title 17, Chapter 1, Section 105 of the US Code.
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| Data/Hora | Miniatura | Dimensións | Usuario | Comentario | |
|---|---|---|---|---|---|
| actual | 10 de setembro de 2017 ás 21:34 | | 4.832 × 6.720 (15,68 MB) | wikimediacommons>Birdfern | User created page with UploadWizard |
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